Hose connection.



I. H. SPENCER.

EOSE GONNECTIONJ.

APPLiC-ATION rum HAB.19,1909.

Patented Jan. 3, 1:31;

smsssy Invent or: 59/2/90 Winesses:

{IN E l a. D STATES PATENT ()FFICE.

IRA H. SPENCER, Ol HARTFORD, CONNECTICUT, ASSIGNOR TO THE SPENCER TURBINE CLEANER COMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF CONNECTI- HOSJ'E GONNECTIGK.

Specification of Letters Patent.

Patented Jan. 3, 1911.

Application filed March 19, 1909. Serial No. 484,525.

T all whom it concern:

Be itknown that I, IRA H. SPENCER, a citizen of the United States, and aresident of Hartford, in the county of Hartford and Staie'of Connecticut, have invented a new and Improved Hose Connection, of which the following is a specification.

My invention relates more especially to the class of devices employed for the temporary connection of flexible tubing, as hose and the like, and the object or" the invention is to provide a device of this class having novel features of advanta e and utility.

One form of device in tile use ofwhich the object sought may be attained, is illustrated in the accompanying drawings, in which- Figure 1. is a side view of the ends of two pieces of hose united with my improved connection. Fig. .2. is a view partly in central Fig. 3. is a view in cross section on plane denoted by dotted line 33 of Fig. 2.

The device herein illustrated and described embodies means whereby two sections of flexible tubing, as hose or the like, may be securely united to effectually/prevent leakmaterial, as rubber.

age at the joint. The device is especially applicable for use in the temporary connectron of sections of hose. more especially those employed in the operation of cleaning apparatus in which it is desirable that the connection may be made or severed with as little etl'ort as possible, and also one in which lightness is an essential feature; and also as having little liability to mar the surface of floors, furniture and the like. A device embodying these desirable features is illustrated inthe accompanying drawings, in which the numeral 5 illustrates the end of one section of a piece of hose, and the numeral G the end of another section. Both of these ends are preferably formed of elastic One of the sections as the end 5 is made of a size to quite snugly fit within the end of the other section. This fit, however. is such that the end 5 may be introduced into the end 6 and forced in to the required extent without undue effort. In the preferred form of construction the end 6 is provided with a recess 7 terminating at its inner end at shoulder 8, against which the end of the section 5 abuts. Retainers for a clamping band are located on the end 5, in the preferred form of construction as ribs 9, extending about the end 6 and at some distance apart. The inner surface of the end 6 is formed for engagement with the end 5, in the preferred form of construction and V as shown herein, an annular groove 10 extendingahcut the inner surface of the end 6. A. rib 11 is formed upon the outer surface of the end 5 to engage within the groove 10.

As hereinbefore stated, the recesses in the end 6 and the end 5 are of such relative size that the one while snugly fitting within the other does not fit so closely but that it may be inserted without the application of undue force; that is, the fit should be such that the parts ma be engaged with the exertion of but comparatively little human strength. By constructing the two ends of elastic material and to fitas abovedcscribed, a very close union is obtained between the outer surface of the inner member, and the 'inner surface of the outer member. As the parts are inserted one within the other, both may give to a slight extent to enable this insertion, and when the engaging means are in proper position the parts will assume their normal shape without any appreciable distortion.

In the use of the connection with pneumatic apparatus in which a suction is emploved, the effect of this suction will serve to close the joint and increase its efiectiveness as to tightness. In order to further render the joint free from liability to leak-' age, a clamping band 12 is employed. This may be of any desired material, referably metal, fitted to the outer surface 0 the end 6 and resting between'the ribs 9. It is of such size that while it may be quite readily moved along the surface of the end 6 between these ribs, fret will fit so closely as to hold the rib' l1 and wall of the recess 10, or othe interengaging means when employed, securely together. The end 5 is provided with a. rib' 13, forming a shoulder 1- to engage. a lip or like part upon a valve and thus prevent accidental removal of the end 5 when it is inserted directly in a valve coupling.

hile I have shown and described herein the inner member as formed integral with the section of hose of which it forms the end,

the invention is not limited to such, as this greater or lesse extent without avoiding the inventi on.

I am aware that it is old to stretch an elas tic tube over the end- 0f a rigid connection, the latter of which may be provided with ooves into which the elastic material is orced by compression the efifort of such material-to resume its normal position, and that clamping bands,.wire, etc., have been em loyed to hold the parts but whether suc bands are or not employed the structure is one in which the tube is permanently or at least semi-permanently held in place and would not answer the requirements of a device in which it is essential that the parts may be readily engaged and disengaged as in the structure shown herein. lily device differs from such prior structures in that the surface of one of the meeting ends at least which rests against the other surface being of flexible material embodies qualities that cause the surfaces to closely adhere; The

parts are so formed that while the contactsurfaces lie closely against each other, they do so Without undue distortion, a condition favorable to extended usefulness of the structure, and this close contact is aided by the suction produced in the hose, so that while an extremely tight joint is obtained pneumatic cleaning, as there are no projections or cornersupon which the debris taken up by the machine may catch. The ring 12 is referably provided with a covering 15 of ru her or other comparatively soft material,

as shown by heavy black lines in Figs. 2 and 3, thus rendering the entire device tree fidm any liability to mar floors or furniture. a

I clzum: 1. A connection for flexible tubing, 1n-

cluding two ends, each formed of flexible material, one removably fitting securely within the other, inter-engaging means upon the meeting faces of the two ends, and a sliding band movably posit oned to prevent disengagement of said engaging means.

'2. A. connection for flexible tubing, in-' cludilig an end composed of flexible material having annular ribs providing a s ace be-' tween them, a clamping member s idingly located between said ribs,"a n end composed of flexible material constructed to removably fit securely within the end of the othercmember, and inter-engaging means in the meeting faces of said ends arranged to be held by said clamping member.

3. A connection for flexible tubing, in-

cluding the end of a section formed of flexible materialhaving a recess, and the end of another section formed of flexible material and constructed to removably fitsecurely within said recess, hnnular ribs formed upon one end and located to provide a space between the ribs, a clamping member movably mounted between said ribs, andinter-engaging means he ween the two ends arranged to be held in engagement by said clamping member. v

. IRA H. SPENCER. \Vitnesses JOSEPH M. Menow, ALONZO M. LUTHER. 

